#include <stdio.h>
#include <math.h>
double x1, x2, d;

double f1(double a, double b) {
	x1 = -b / (2 * a);
}

double f2(double a, double b) {
	x1 = (-b + sqrt(d)) / (2 * a);
	x2 = (-b - sqrt(d)) / (2 * a);
}

int main() {
	double a, b, c;
	scanf("%lf %lf %lf", &a, &b, &c);
	d = b * b - 4 * a * c;
	if (d == 0) {
		f1(a, b);
		printf("x1=x2=%.2f", x1);
	} else if (d > 0) {
		f2(a, b);
		printf("x1=%.2f\tx2=%.2f", x1, x2);
	}
}